Improved mechanical properties of steel/aluminium laser welding joint by Ti powder addition: experimental and first-principles investigations Online publication date: Wed, 07-Feb-2024
by Dianwu Zhou
International Journal of Manufacturing Research (IJMR), Vol. 19, No. 1, 2024
Abstract: The generation of brittle intermetallic compounds (IMCs) need be solved for steel/aluminium welding quality. In this study, Ti powder was selected as interlayer and the experiments of laser penetration welding for steel/aluminium through addition of interlayer were carried out. The effect of adding Ti powder on mechanical properties of the weld was investigated. Experimental results showed that the increased penetration depth was obtained, and the average tensile-shear strength of Ti-added joint was 10% higher than that of no-added joint. First-principle calculations revealed that the effect of reduced brittleness of IMCs with the addition of alloying elements was in accordance with the improved mechanical properties. When Ti powder was added, the grain was small, the layer thickness and brittleness of IMCs decreased, ductile phase Fe2Ti were formed. Hence, mechanical properties of the weld were significantly improved. [Submitted 14 March 2019; Accepted 10 February 2021]
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Manufacturing Research (IJMR):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook